yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] Kookie_Monster:
Dude.... I was just watching the video... you sound like you're trying to sell my UI. :D Thanks! :good: I just gave you some of my ideas... but you did all the work! ;)

Great video, very thorough... shows exactly what a car tablet UI is all about.

And now it's my turn to ask for your help. You've actually done something that I tried to do a few days ago but couldn't, and so I gave up: create buttons for both "phone" and "text msgs" on Tablet Talk. There's no activity for each one... so how did you do it? That's pretty cool!! You have to teach me that one. lol
[Nexus 7 General] Kuchar09:
Sure no problem!! File is attached to this post and I'll try to add it to original post also.

I may have used some funky methods for some things in PS so don't judge me :p

PSD File

If the link doesn't work let me know and I'll upload it a different way.

Yes constant power to one of my USB hubs that I only have my DAC connected to.

The DAC gives you better sound quality than over the 3.5 mm built into the tablet.

If your using Timurs USBROM there is an option so that your hub is only powered when the tablet is power or to have the tablet power the hub when it is not charging.

Sounds like your charging noises could be a bad ground which is getting noise from your cars alternator, check all your grounds and make sure they are good!

lol no problem!! just give credit where its deserved!

For phone and text messages its very simple, these are just app shortcuts. Tablet Talk makes 2 app icons one called Phone and one called Tablet Talk.

So I just made those buttons launch the Phone app and the Tablet Talk app.

Yeah it is that simple lol
[Nexus 7 General] Kuchar09:
Basically the only things I have left to complete with my install are

-Fix Torque app glitch (contacted developer)

-Add virtual keyboard to External Keyboard Helper (contacted developer) not a big deal with my mini bluetooth keyboard

-Redo Backup Cam to either legit backup camera or fix my tint issue

-Finalize my UI with sizing and widgets placement

-Possibly look into running without a battery by running voltage regulator from the cars battery in place of the tablet battery. This way I don't have to worry about the temperatures in my car and my battery being dead.

-Add a external mic!! This is probably the most important out of this list to me.

I'll keep you guys updated on my progress!!
[Nexus 7 General] daclothe:
i have tried a couple of different methods for external mics and it has not worked for me at all yet. so far i have tried:

-using a TRRS cord from a set of headphones (doesn't work since the n7 only uses a TRS connector)

-using a bluetooth headset (couldn't get it to work with google now/navigation)

-using a jabra bt3030 which is awesome otherwise (see above)

i saw a review of the probox2 on another site and saw that it had an RF remote that has mic input on it, which was cool, but didn't feel like burning extra money going down that rabbit hole. needless to say i'll be keeping tabs on your progress.

also big props to KM for that layout it's pretty dope!
[Nexus 7 General] Kookie_Monster:
** facepalm **

I didn't notice the "Phone" icon. No wonder there's no independent activities in Tablet Talk, They're actually like different apps. Very cool! Thanks mate! :good:

Thanks daclothe... :)
[Nexus 7 General] eastside770:
yeah im using the rom cant find that option though..you think with the hard drive in sleep mood it would be kill the battery over night? and what are you using to control volume on screen
[Nexus 7 General] zkello:
Awesome install!

I plan on doing this over the summer with my Nexus 7, and I'm curious as to your plans for an external mike. I want to be able to use a mike to use Google Now and say voice commands for the tablet. Unfortunately, I also want to do hands free calling with my phone and have the call audio go through the car speakers. Any ideas as to how I can hook up both audio streams without them conflicting with each other?

Thanks.
[Nexus 7 General] daclothe:
external mic stuff is what the OP was just talking about...AFAIK there isn't much of a solution (yet)

you can get the JVC head unit that seems to be all the rage these days if you're going aftermarket, but if you're staying stock that may be a bit more of a challenge.
[Nexus 7 General] Kuchar09:
It is in the setting under USB HOST. I'm trying to remember when I was messing with things beforebut without FI enabled it will only power the USB device and take no charge in the tablet, but with it enabled it can take in charge and provide power to the usb device but your usb device can not be powered if the there is no incoming power into the OTG Y charge cable.

I'm using a Ultimate Widget Creator widget that runs a command from tasker to either turn volume up or down.

Well either wait till someone figures out a USB mic or take on the challenge myself, but school is very hard right now so it would have to wait another 2 months until school is finished.

Not think its currently possibly to use a mic on the tablet to take call from your phone. My plane is once there is an external mic option I'm going to use Talkatone app to basically make my tablet in my car a phone with its own number and everything. Of course this will use data but my thone automatically connects to my tablet when my car starts.

Oh and in case you didn't know with Timurs USBROM the internal mic still works with a USB DAC. Mine just doesn't really work being mounted behind the dash and all.
[Nexus 7 General] PHiL_G4:
Hi Kuchar09!

For what do you have the Fiio D3?

Is the E10 not enough (3,5mm to 2xcinch -> amp)?

regards

phil
[Nexus 7 General] Kuchar09:
The D3 is a digital to analog converter (Coaxial to RCA)

Tablet>>USB DAC>> digital to analog converter (Coaxial to RCA)>>AMP

So Coaxial from DAC to D3 then from D3 I have RCA to amp

Hope that makes sense
[Nexus 7 General] MetalMan2:
May I ask how you achieve this? I'm using AutoTether widget to trigger Wifi Tether for Root Users on my Galaxy S3, but this requires manual interraction. The dev of AutoTether at one point was going to create a Tasker plugin (which would be perfect...) but since seems to be MIA.

And I'm assuming you're using Wifi tethering.
[Nexus 7 General] eastside770:
Hey I found the setting you was referring to. You think I could get the tasker app to cut that on and off. For instance cut it on when i crank up the car and off and 3 mins after i cut the car off? i have like 100 gb of music and just tryin to keep it accessible soon as I jump in and out of the car
[Nexus 7 General] naiku:
Quick question for you, did you find that you have to use powered USB hubs? I bought a cheap hub from eBay, and it does not seem to be providing enough power when its just hooked to the OTG cable. I am wondering if I should start trying to think about powering it separately. I don't want to have it all in behind my dash, and then find that things are not working due to the hub not providing enough power. I don't see me using anything more than:

USB flash drive

USB-DAC

Joycon

Easycap (50/50 on using this).
[Nexus 7 General] Phill360:
Just wondering what you would use the Easycap for?

Sent from my One X
[Nexus 7 General] Kuchar09:
I didn't use any special software besides tasker. I basically just told taker when bluetooth is turned on connect to my phone for bluetooth data connection. If not connected keep trying every 30 seconds, that way when I remote start my truck it still connects once I get into the vehicle.

I'f you'd like I can get more information on this tomorrow.

Don't think so since its not a common setting and is only implemented into Timurs ROM, but I see no reason why you would want to disable it once your tablet is installed anyways.

I used 2 USB extensions to make USB HUB externally powered then plugged that into DC USB charger. This basically turns my usb hub into an externally powered hub. There are other methods that Timur recommends but I went this route to be able to charge the tablet with the car off.

Check out my wire diagram in the OP and look at the modified usb cable. You can also check out my power explanation videos part 1 & 2 (in OP) which explains it a little bit more in depth.

If your still confused just let me know!

Easycap allows you to hook up a normal backup cam instead of using a webcam.
[Nexus 7 General] MetalMan2:
Ah so it sounds like you're using Bluetooth tethering... right? If so, I'm familiar with how to do that. Just have been looking into automating wifi tether using the app Wifi Tether for Root (which is the best way for a VZW Galaxy S3).
[Nexus 7 General] Kuchar09:
Yes I'm using bluetooth tethering since I feel like it uses much less battery on my phone and this way I never have to mess with wifi on the tablet. Of course you might rather use wifi tethering but this is just how I'v done it since Iv had my tablet and I feel like it uses much less battery on my phone.
[Nexus 7 General] Hayashi49:
So you couldn't just go from the DAC 3.5mm out to RCA cables?
[Nexus 7 General] Kuchar09:
Well you could probably go with this cable but you need to make sure it has female RCA plugs so your amp cables can plug into them, not positive this would work but I think it would.

Cable

Guess I just added an external analog converter since I was worried about getting engine noise and already had the coaxial cable.
[Nexus 7 General] eastside770:
in order to keep the music from my hard drive on the tablet once the car is off. when its on charge the music stays there once i unplug it from charge the music disconnect.
[Nexus 7 General] Mrboxfacetramp13:
This is just amazing
[Nexus 7 General] Kuchar09:
Well thats basically how I have mine, I have all my music on a flash drive. You just need to make sure you pause the music before or instantly as you disconnect the power. If that still doesn't keep your music there once you reconnect the power try messing with your auto search settings in your music player. For example I believe I have all my auto search for music settings disabled in poweramp.

Thanks man!
[Nexus 7 General] theholyhermit:
Awesome!

That is a very cool setup. This is my next big project. Cassette deck+tape adapter, BEGONE!
[Nexus 7 General] RED ZMAN:
Were you able to find an OT G cable with a 90 degree bends it went down words when held in landscape like that? I'm doing the same build on my 2010 Kia Soul sport soon, swapping out for my samsung galaxy tab is currently in there.

Blasted from my Samsung Galaxy SIII (CM10.1 Masta Mix).
[Nexus 7 General] Kuchar09:
I was able to find normal OTG cables with a 90 degree bend but not an OTG charge cable. So I bought a 90 degree 5 pin extension which unfortunatly only had 4 wires in it so that did not work for OTG. This cable has been reported working! They are slightly expensive compared to the ones on ebay but at least you'll know it works! Then you can just plug your OTG cable into that and be good to go!
[Nexus 7 General] Kuchar09:
Update on the external mic!

I took my nexus apart and unfortunatly there is no way to extend the internal mic and there is also no way at this time to also have 2 DAC connected at once(one for music DAC and another DAC that has an input since I do not want to give up my Fiio).

But you can use a bluetooth headset as an mic with certain apps. So my plan is to get a sun visor bluetooth speakerphone/mic that can connect to my tablet and also my phone to take calls. Something like THIS.

Here is a video of what I'm talking about.

[YOUTUBE]iHmg5Dg7zhM[/YOUTUBE]
[Nexus 7 General] sonofskywalker3:
Loving this topic. I'm currently working on installing my Nexus 7 in my Chevy Cobalt, and I love the custom UI you set up. Can you please go into more detail on how you made the UI? I downloaded UCCW and Tasker for the buttons, but where did you find the wallpaper, and how do you make the current track info work? Will it only work with poweramp, or other music apps too? I will be improving my setup as time goes by, but for now I'm just going to use google play music, pandora, music unlimited, and MediaU, and it would be cool if the track buttons and now playing worked.

Thanks so much for putting all of this stuff online, and for helping those of us just getting started with our projects.
[Nexus 7 General] rebornsoul89:
this is way too good man! well done :good:
[Nexus 7 General] eastside770:
Hey Kuchar09 how did you wire your power/volume buttons? Also the Wifi/GPS are those stickers just on the back of your set up?
[Nexus 7 General] Hayashi49:
I'm just kind of curious as to why people are going from Nexus 7 > DAC > Audison BitOne > Amp and not just Nexus 7 > DAC > Amp. Is there a reason why the DAC needs to be decoded?
[Nexus 7 General] Kuchar09:
Hey sorry I haven't been on in a while spring break has been a little crazy.

The wallpaper was all done in photoshop. I found a honeycomb background and adjusted the hue to make it slightly blue. Then I just transplanted my chevy bowtie from my original background and re painted all the app icons to black and white to go with my theme. I have the PSD file in the original post I think, but its definitely posted a page or two back

The current track info does work with poweramp and google music but I'm not sure about others. I'd have to look things up since I dont exactly remember how I did it but I will update this post or tell you how to do it in a new post! Sorry

The wifi/gps are just stickers I believe but I didnt want to break them so I just put the whole back panel in my headliner and ran wires to it.

I wired up the buttons by just pealing the film off and soldering wires to the contacts for the buttons and put hot glue over them to prevent them from ripping off. Here is a link that I got the idea from! LINK

Well the Audison BitOne is an amazing piece of equipment but is a little pricey. I believe the main reason some people are using this is because it give you more control over your audio such as fading left, right, front, rear and also sub controls.

The route I went with my DAC needed to be decoded because my amp couldn't support a digital input so I had to convert the digital to analog.
[Nexus 7 General] Hayashi49:
Thanks a lot for the help and the post, its helped me figure out what I want to do with mine, which I should be doing soon.
[Nexus 7 General] naiku:
OK, so I am still confused!! I watched the videos, and looked at the wiring diagram. If I am reading correctly, you tapped into the ignition to power the one USB hub (and also split this to provide power to the OTG cable). I think the piece that is confusing me is how does the USB hub become a powered hub? My wiring would go something like this:

Nexus 7 --> OTG Cable --> (splits into 2) power from USB charger cable / USB hub --> Flash Drive, USB DAC etc plugged into the USB hub.

How do I turn the hub into a powered hub though? Do I splice the input from the ignition into the piece of the USB hub that is plugged into the OTG cable? I attached a diagram of what I think the wiring should look like. The line with the arrow coming out of the DC-DC converter is currently not there, is that what I need to add in order to turn the hub into a powered hub? If that is correct, then finally does this work with any hub? I have one of these USB Hub.. I am not opposed to buying a new hub, but if this one works, then no need to buy another.

In my testing so far, I am pretty certain the hub not being powered is causing me issues. When I have even just the USB flash drive connected, the Nexus drops the connection (then tries to connect again) which ends up giving me an error with it telling me the USB storage is damaged.

Thansk.
[Nexus 7 General] Kuchar09:
Yes that arrow is what needed so that the hub will be externally powered. all you need to do in cut into the hub wire and find the power and ground wire, which was red and black on both of mine. Cut the red wire and wire the 5V DC arrow cable to the wire you cut going towards the hub, tape up the one going towards the tablet.

Then just tap into the ground cable with your ground from the 5V DC, I remember reading something about they need to have a common ground which is why you don't cut this one. (This is basically what I did with the two usb cables in my video to just make it plug and play, unfortunately I already had them taped up so I couldn't show it)

That is weird that the tablet cuts out with a flash drive connected. I didn't have any problems with everything connected to mine besides not staying charged. Maybe try another flash drive just to see if that helps.

Hopefully this works for you! If not let me know and I'll see what I can do!
[Nexus 7 General] naiku:
Thanks, really appreciate the quick reply.

Sorry, I should clear this up. The tablet itself does not cut out, it acts as though I am plugging / unplugging the flash drive. The tablet then tells me the USB storage is damaged, and I usually have to reboot to clear that message. It does a similar thing with just the USB-DAC plugged into the hub, which is why I think I need a powered hub.
[Nexus 7 General] TerraPirata:
Hi Kuchar, I just read the hole thread looking for an answer to the only one problem I have.

I also have a N7 installed in my Xterra, and works great, I even made my own wallpaper with custom logo, I'm also using the Timurs kernel but with diferent rom (AOPK).

Well my problem is that I'm not happy with externally charge the N7 every time in a while, lets be honest the N7 is not a fast charger tablet, i have in my other ride a HTC Evo View (yeah I did this 1 year ago here: http://www.youtube.com/watch?v=3MDEB-hIqjM and here the how to: http://www.jukeforums.com/forum/nissan-juke-diy/121507-how-isntall-tablet-juke.html) and the HTC is freaking slow compared to the N7 but charge a lot faster with a 9v charger)

Well.. you said in post 91:

Can you please explain your idea and the stuff we are going to need??... man I love the N7 but knowing the battery is discharging bothers me a lot.

so this is the battery:

Do you have any idea what voltage those cables have?? I have no clue, and maybe we need to take the n7 apart and do some testing...

Ps: you did a great job on your truck, and most important an amazing thread...

Ps 2: sorry for my English, I'm Argentinian.

Edit: I'm thinking, maybe the red ones are 4.2 volts, we can get a regulator from the car to the tablet but we need something like this:

Yeah I use to build car pc before, and this m2 ATX were pretty good surviving the engine cranks, maybe we can take the 5v rail and replace the battery conection.

(well I just asking, but I came here because I don't know what to do LOL.)

Terra
[Nexus 7 General] Kuchar09:
Hey sorry I didn't reply last night, I got distracted doing a little research on this subject.

I want to say that the battery has 2 5V rails so something like that could work. But after reading your pic guess it is 4.2V lol. Not sure what the middle wires do on the battery though.

"maybe we can take the 5v rail and replace the battery conection." This is basically exactly what I was thinking. Just a voltage regulator instead, but I like that power supply much more!

I'll try and do a little research on the battery but the only time I remember anyone talking about the wires is when they were trying to instal a SD card in the tablet.
[Nexus 7 General] Kuchar09:
Well I found this link below while I was trying to find the pinout of the battery.

In the link he's trying to charge the battery internally. I'm not sure about you but I plan to completely remove that battery and use the power supply as the battery if its even possible of course.

They seen to think the white and yellow wires are likely temperature sensor so not sure if we would need these or not. I still plan on doing more research but thought I'd share my findings!

http://xdaforums.com/showthread.php?t=2137652
[Nexus 7 General] Hayashi49:
Am I right in thinking that you ran the DAC off of a always powered USB hub because of the issues of having it turn on and off when the tablet is always on? Something about there are issues with it playing back sounds sometimes?

Did you notice any issues or have any issues with your car battery and having the DAC on all the time?

Thanks
[Nexus 7 General] deemeetar:
Awesome thread. I have read it all and I have a simple project I want to tackle on.

First of all, i'm far from educated in electronics so i would like to go the noob and simple way.

I have Hyundai Santa Fe 2007.

My intention is to use removable mountable dock for the N7. I would power it through standard car usb charger. I would connect to the audio with the build in aux input(I'm no audio junkie, it should have moderate volume, just for a background noise while driving :D). I would also use wireless OBD2 adapter with torque. The one thing left which is a bit complicated is figuring a proven way to use reverse camera(regular that i can get in my local shops) and also activating the app when i put it in reverse.

Would you say this is all possible and what would you recommend me using?
[Nexus 7 General] naiku:
Thanks for this link, I had been having all kinds of trouble today with using a 90 degree adapter I bought from eBay, or plugging directly into my Nexus. The space between where the cable is routed through the dash is so tight, that anytime I pushed the dash trim into place, it pushed the USB connector just slightly that, while power was retained, I was losing data (USB-DAC loses signal, flash drive is lost). I have it working for now, but am worried that the stress on the connector will damage it, and also that if I remove the Nexus (if parked in a poor area) that it will take me 20 minutes to get it plugged in and working again.

You are right about those cables being expensive! $12.95, but the down connector looks like it might work perfectly for me. 3 different 90 degree adapters and I might have finally found one that works!! (1st one I bought was mini-USB, doh!! then I bought a pack of 2 micros, that work, but are causing the issue above). The additional 5" should also make it easier plugging in, and if it does not work looks like they have a 30 day money back guarantee.

FYI - Your wiring help was great, oddly enough I did not have to use a common ground though. I kept having issues with my splice, ended up accidentally breaking the ground wire off the USB hub's plug, got annoyed and twisted it directly to the ground coming from the converter, worked perfectly.

Apart from the issue above, I am 99% done, need to next pick up a CAN-BUS adapter, and Joycon. Changing volume via the screen while driving sucked.... too quiet... touch screen.... aaahhh too loud... try again... too quiet..... try again and just right.
[Nexus 7 General] chismay:
im coming in with a non techy comment to help lift your spirits.

i would constantly have a equalizer app fullscreen while using virtual assistance/google now........ instant knight rider styleeeee :silly:
[Nexus 7 General] Kuchar09:
Yeah basically I was getting a weird static issue. I haven't noticed anything different about my cars battery but then again I have a ton of other little things that are also being powered and have never had any issues.

You want to look into an easycap module which will allow you to hook up a normal backup cam. It has to have a special chip... check out Timurs thread for the correct chip or I may have listed it a few pages back. In Timurs thread there is a developer that made an app to work with the easycap that opens once the backup cam senses the reverse signal, I plan on going this route in the near future.

Humm I guess I didn't try without a common ground... thanks for that info! Yeah volume on steering wheel is great!!! I only use my volume button on the screen when my car isn't running since thats when my steering controls don't work due to the voltage drop.

Oh and very nice install by the way!!
[Nexus 7 General] sonofskywalker3:
Any chance I could get some details on my earlier question?